#66BC67
Closest named color: Dark Mint (#48C072). oklch(72% 0.146 144.1), rgb(102, 188, 103).
Aa
Black text reads best on this color (8.95:1).
About this color
#66BC67 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.146 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.023 away. Black text reads best on it, at 8.95:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 8.95:1 |
| White text | 2.34:1 |
Values
| HEX | #66BC67 |
| RGB | rgb(102, 188, 103) |
| HSL | hsl(121, 39%, 57%) |
| OKLCH | oklch(72% 0.146 144.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #66BC67 | 2.34:1 | Fails | Lc -50.9 | Large or bold text, headings |
| Black text on #66BC67 | 8.95:1 | AAA | Lc 57.9 | Large or bold text, headings |
| #66BC67 text on white | 2.34:1 | Fails | Lc 46.0 | Large or bold text, headings |
| #66BC67 text on black | 8.95:1 | AAA | Lc -56.0 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E0EFDF
oklch(93.7% 0.027 143.6)
-
Step 200
200
#C6E2C5
oklch(88.4% 0.049 144.2)
-
Step 300
300
#9DD09B
oklch(80.8% 0.091 143.8)
-
Step 400
400 (this color)
#66BC67
oklch(72% 0.146 144.1)
-
Step 500
500
#27A532
oklch(63.2% 0.187 144)
-
Step 600
600
#008C1C
oklch(55.6% 0.179 144.1)
-
Step 700
700
#007616
oklch(49.1% 0.159 144.1)
-
Step 800
800
#006110
oklch(42.8% 0.138 144.1)
-
Step 900
900
#00510C
oklch(37.8% 0.122 144.2)
-
Step 950
950
#072F0A
oklch(26.8% 0.076 144.2)
#66BC67 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #BFAE60 | 0.110 |
| Deuteranopia (no green cones) | #B3A66C | 0.109 |
| Tritanopia (no blue cones) | #5BB8A8 | 0.091 |
| Achromatopsia (no color) | #A9A9A9 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66BC67
#66BC67
oklch(72% 0.146 144.1)
- #D183D8
#D183D8
oklch(72.1% 0.146 324)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #66BC67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.023
- Turtle Green #75B84F ΔE 0.025
- Soft Green #6FC276 ΔE 0.025
- Boring Green #63B365 ΔE 0.026
- Dark Mint Green #20C073 ΔE 0.038
- Algae Green #21C36F ΔE 0.039
- Cool Green #33B864 ΔE 0.039
- Faded Green #7BB274 ΔE 0.043
Use #66BC67 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.